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10,021
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Media Type
3
collections
8,961
texts
470
movies
454
audio
64
data
48
images
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Topics & Subjects
4,396
NASA Technical Reports Server (NTRS)
3,148
Astronomy
1,018
astronomy
901
X RAY ASTRONOMY
708
ASTRONOMY
657
SPACEBORNE ASTRONOMY
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Collection
4,396
NASA Network Resource and Training Site
1,935
American Libraries
578
Canadian Libraries
430
NASA Technical Documents
388
Folkscanomy: A Library of Books
370
Community Audio
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Creator
4,396
nasa technical reports server (ntrs)
354
eric
129
joe lalumia
108
defense technical information center
88
humboldt, alexander von, 1769-1859
57
france. ministère de l'éducation nationale
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Language
7,732
English
370
German
365
French
225
Latin
79
Italian
52
undetermined
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